Lines Matching full:iommu
18 #include <linux/iommu.h>
55 static int __enable_clocks(struct msm_iommu_dev *iommu) in __enable_clocks() argument
59 ret = clk_enable(iommu->pclk); in __enable_clocks()
63 if (iommu->clk) { in __enable_clocks()
64 ret = clk_enable(iommu->clk); in __enable_clocks()
66 clk_disable(iommu->pclk); in __enable_clocks()
72 static void __disable_clocks(struct msm_iommu_dev *iommu) in __disable_clocks() argument
74 if (iommu->clk) in __disable_clocks()
75 clk_disable(iommu->clk); in __disable_clocks()
76 clk_disable(iommu->pclk); in __disable_clocks()
121 struct msm_iommu_dev *iommu = NULL; in __flush_iotlb() local
125 list_for_each_entry(iommu, &priv->list_attached, dom_node) { in __flush_iotlb()
126 ret = __enable_clocks(iommu); in __flush_iotlb()
130 list_for_each_entry(master, &iommu->ctx_list, list) in __flush_iotlb()
131 SET_CTX_TLBIALL(iommu->base, master->num, 0); in __flush_iotlb()
133 __disable_clocks(iommu); in __flush_iotlb()
143 struct msm_iommu_dev *iommu = NULL; in __flush_iotlb_range() local
148 list_for_each_entry(iommu, &priv->list_attached, dom_node) { in __flush_iotlb_range()
149 ret = __enable_clocks(iommu); in __flush_iotlb_range()
153 list_for_each_entry(master, &iommu->ctx_list, list) { in __flush_iotlb_range()
157 iova |= GET_CONTEXTIDR_ASID(iommu->base, in __flush_iotlb_range()
159 SET_TLBIVA(iommu->base, master->num, iova); in __flush_iotlb_range()
164 __disable_clocks(iommu); in __flush_iotlb_range()
207 static void config_mids(struct msm_iommu_dev *iommu, in config_mids() argument
216 SET_M2VCBR_N(iommu->base, mid, 0); in config_mids()
217 SET_CBACR_N(iommu->base, ctx, 0); in config_mids()
220 SET_VMID(iommu->base, mid, 0); in config_mids()
223 SET_CBNDX(iommu->base, mid, ctx); in config_mids()
226 SET_CBVMID(iommu->base, ctx, 0); in config_mids()
229 SET_CONTEXTIDR_ASID(iommu->base, ctx, ctx); in config_mids()
232 SET_NSCFG(iommu->base, mid, 3); in config_mids()
367 struct msm_iommu_dev *iommu, *ret = NULL; in find_iommu_for_dev() local
370 list_for_each_entry(iommu, &qcom_iommu_devices, dev_node) { in find_iommu_for_dev()
371 master = list_first_entry(&iommu->ctx_list, in find_iommu_for_dev()
375 ret = iommu; in find_iommu_for_dev()
385 struct msm_iommu_dev *iommu; in msm_iommu_probe_device() local
389 iommu = find_iommu_for_dev(dev); in msm_iommu_probe_device()
392 if (!iommu) in msm_iommu_probe_device()
395 return &iommu->iommu; in msm_iommu_probe_device()
406 struct msm_iommu_dev *iommu; in msm_iommu_attach_dev() local
414 list_for_each_entry(iommu, &qcom_iommu_devices, dev_node) { in msm_iommu_attach_dev()
415 master = list_first_entry(&iommu->ctx_list, in msm_iommu_attach_dev()
419 ret = __enable_clocks(iommu); in msm_iommu_attach_dev()
423 list_for_each_entry(master, &iommu->ctx_list, list) { in msm_iommu_attach_dev()
430 msm_iommu_alloc_ctx(iommu->context_map, in msm_iommu_attach_dev()
431 0, iommu->ncb); in msm_iommu_attach_dev()
436 config_mids(iommu, master); in msm_iommu_attach_dev()
437 __program_context(iommu->base, master->num, in msm_iommu_attach_dev()
440 __disable_clocks(iommu); in msm_iommu_attach_dev()
441 list_add(&iommu->dom_node, &priv->list_attached); in msm_iommu_attach_dev()
456 struct msm_iommu_dev *iommu; in msm_iommu_detach_dev() local
463 list_for_each_entry(iommu, &priv->list_attached, dom_node) { in msm_iommu_detach_dev()
464 ret = __enable_clocks(iommu); in msm_iommu_detach_dev()
468 list_for_each_entry(master, &iommu->ctx_list, list) { in msm_iommu_detach_dev()
469 msm_iommu_free_ctx(iommu->context_map, master->num); in msm_iommu_detach_dev()
470 __reset_context(iommu->base, master->num); in msm_iommu_detach_dev()
472 __disable_clocks(iommu); in msm_iommu_detach_dev()
517 struct msm_iommu_dev *iommu; in msm_iommu_iova_to_phys() local
526 iommu = list_first_entry(&priv->list_attached, in msm_iommu_iova_to_phys()
529 if (list_empty(&iommu->ctx_list)) in msm_iommu_iova_to_phys()
532 master = list_first_entry(&iommu->ctx_list, in msm_iommu_iova_to_phys()
537 ret = __enable_clocks(iommu); in msm_iommu_iova_to_phys()
542 SET_CTX_TLBIALL(iommu->base, master->num, 0); in msm_iommu_iova_to_phys()
543 SET_V2PPR(iommu->base, master->num, va & V2Pxx_VA); in msm_iommu_iova_to_phys()
545 par = GET_PAR(iommu->base, master->num); in msm_iommu_iova_to_phys()
548 if (GET_NOFAULT_SS(iommu->base, master->num)) in msm_iommu_iova_to_phys()
553 if (GET_FAULT(iommu->base, master->num)) in msm_iommu_iova_to_phys()
556 __disable_clocks(iommu); in msm_iommu_iova_to_phys()
593 struct msm_iommu_dev **iommu, in insert_iommu_master() argument
599 if (list_empty(&(*iommu)->ctx_list)) { in insert_iommu_master()
602 list_add(&master->list, &(*iommu)->ctx_list); in insert_iommu_master()
619 struct msm_iommu_dev *iommu = NULL, *iter; in qcom_iommu_of_xlate() local
626 iommu = iter; in qcom_iommu_of_xlate()
631 if (!iommu) { in qcom_iommu_of_xlate()
636 insert_iommu_master(dev, &iommu, spec); in qcom_iommu_of_xlate()
645 struct msm_iommu_dev *iommu = dev_id; in msm_iommu_fault_handler() local
651 if (!iommu) { in msm_iommu_fault_handler()
656 pr_err("Unexpected IOMMU page fault!\n"); in msm_iommu_fault_handler()
657 pr_err("base = %08x\n", (unsigned int)iommu->base); in msm_iommu_fault_handler()
659 ret = __enable_clocks(iommu); in msm_iommu_fault_handler()
663 for (i = 0; i < iommu->ncb; i++) { in msm_iommu_fault_handler()
664 fsr = GET_FSR(iommu->base, i); in msm_iommu_fault_handler()
668 print_ctx_regs(iommu->base, i); in msm_iommu_fault_handler()
669 SET_FSR(iommu->base, i, 0x4000000F); in msm_iommu_fault_handler()
672 __disable_clocks(iommu); in msm_iommu_fault_handler()
689 * taken care when the iommu client does a writel before
706 struct msm_iommu_dev *iommu; in msm_iommu_probe() local
709 iommu = devm_kzalloc(&pdev->dev, sizeof(*iommu), GFP_KERNEL); in msm_iommu_probe()
710 if (!iommu) in msm_iommu_probe()
713 iommu->dev = &pdev->dev; in msm_iommu_probe()
714 INIT_LIST_HEAD(&iommu->ctx_list); in msm_iommu_probe()
716 iommu->pclk = devm_clk_get(iommu->dev, "smmu_pclk"); in msm_iommu_probe()
717 if (IS_ERR(iommu->pclk)) { in msm_iommu_probe()
718 dev_err(iommu->dev, "could not get smmu_pclk\n"); in msm_iommu_probe()
719 return PTR_ERR(iommu->pclk); in msm_iommu_probe()
722 ret = clk_prepare(iommu->pclk); in msm_iommu_probe()
724 dev_err(iommu->dev, "could not prepare smmu_pclk\n"); in msm_iommu_probe()
728 iommu->clk = devm_clk_get(iommu->dev, "iommu_clk"); in msm_iommu_probe()
729 if (IS_ERR(iommu->clk)) { in msm_iommu_probe()
730 dev_err(iommu->dev, "could not get iommu_clk\n"); in msm_iommu_probe()
731 clk_unprepare(iommu->pclk); in msm_iommu_probe()
732 return PTR_ERR(iommu->clk); in msm_iommu_probe()
735 ret = clk_prepare(iommu->clk); in msm_iommu_probe()
737 dev_err(iommu->dev, "could not prepare iommu_clk\n"); in msm_iommu_probe()
738 clk_unprepare(iommu->pclk); in msm_iommu_probe()
743 iommu->base = devm_ioremap_resource(iommu->dev, r); in msm_iommu_probe()
744 if (IS_ERR(iommu->base)) { in msm_iommu_probe()
745 dev_err(iommu->dev, "could not get iommu base\n"); in msm_iommu_probe()
746 ret = PTR_ERR(iommu->base); in msm_iommu_probe()
751 iommu->irq = platform_get_irq(pdev, 0); in msm_iommu_probe()
752 if (iommu->irq < 0) { in msm_iommu_probe()
757 ret = of_property_read_u32(iommu->dev->of_node, "qcom,ncb", &val); in msm_iommu_probe()
759 dev_err(iommu->dev, "could not get ncb\n"); in msm_iommu_probe()
762 iommu->ncb = val; in msm_iommu_probe()
764 msm_iommu_reset(iommu->base, iommu->ncb); in msm_iommu_probe()
765 SET_M(iommu->base, 0, 1); in msm_iommu_probe()
766 SET_PAR(iommu->base, 0, 0); in msm_iommu_probe()
767 SET_V2PCFG(iommu->base, 0, 1); in msm_iommu_probe()
768 SET_V2PPR(iommu->base, 0, 0); in msm_iommu_probe()
769 par = GET_PAR(iommu->base, 0); in msm_iommu_probe()
770 SET_V2PCFG(iommu->base, 0, 0); in msm_iommu_probe()
771 SET_M(iommu->base, 0, 0); in msm_iommu_probe()
779 ret = devm_request_threaded_irq(iommu->dev, iommu->irq, NULL, in msm_iommu_probe()
783 iommu); in msm_iommu_probe()
785 pr_err("Request IRQ %d failed with ret=%d\n", iommu->irq, ret); in msm_iommu_probe()
789 list_add(&iommu->dev_node, &qcom_iommu_devices); in msm_iommu_probe()
791 ret = iommu_device_sysfs_add(&iommu->iommu, iommu->dev, NULL, in msm_iommu_probe()
798 iommu_device_set_ops(&iommu->iommu, &msm_iommu_ops); in msm_iommu_probe()
799 iommu_device_set_fwnode(&iommu->iommu, &pdev->dev.of_node->fwnode); in msm_iommu_probe()
801 ret = iommu_device_register(&iommu->iommu); in msm_iommu_probe()
810 iommu->base, iommu->irq, iommu->ncb); in msm_iommu_probe()
814 clk_unprepare(iommu->clk); in msm_iommu_probe()
815 clk_unprepare(iommu->pclk); in msm_iommu_probe()
820 { .compatible = "qcom,apq8064-iommu" },
826 struct msm_iommu_dev *iommu = platform_get_drvdata(pdev); in msm_iommu_remove() local
828 clk_unprepare(iommu->clk); in msm_iommu_remove()
829 clk_unprepare(iommu->pclk); in msm_iommu_remove()
848 pr_err("Failed to register IOMMU driver\n"); in msm_iommu_driver_init()